Finding the Fourth Proportional to 123.26, 184.89 and 42.09

Step by Step Solution

1. Step 1: Write the proportion equation
   123.26 : 184.89 = 42.09 : x
2. Step 2: Convert to fraction form
   123.26/184.89 = 42.09/x
3. Step 3: Cross multiply
   123.26x = 184.89 × 42.09
4. Step 4: Simplify right side
   123.26x = 7,782.02
5. Step 5: Solve for x
   x = 7,782.02/123.26
6. Step 6: Final answer
   x = 63.14